What is the current concentration of PM10 in Chester City, Pennsylvania?

The current PM10 concentration at Chester City, Pennsylvania is 142.193 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Chester City, Pennsylvania?

The current sulfur dioxide (SO2) concentration at Chester City, Pennsylvania is 0.99 ppb.

What is the current concentration of ozone (O3) in Chester City, Pennsylvania?

The current ozone (O3) concentration at Chester City, Pennsylvania is 3.542 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Chester City, Pennsylvania?

The current nitrogen dioxide (NO2) concentration at Chester City, Pennsylvania is 17.086 ppb.

Chester City, Pennsylvania live air quality index now

Q: What is the current concentration of PM2.5 in Chester City, Pennsylvania?

The current PM2.5 concentration at Chester City, Pennsylvania is 32.9 μg/m3.

Stay updated with real-time air quality in Chester City, Pennsylvania featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Moderate

Chester City, Pennsylvania

Last updated: ... (Local time)

Major air pollutants in Chester City, Pennsylvania

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

32.90 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

142.19 μg/m³

155

255

425

605+

Ozone (O₃)

3.54 ppb

201

201+

Sulfur Dioxide (SO₂)

0.99 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

17.09 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.69 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Chester City, Pennsylvania

Get Live Pollen Counts

Chester City, Pennsylvania

Scroll To Air Quality Map

Track live Chester City, Pennsylvania air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-05T09:00:00.000Z	29 \| good	2.571 \| good	10.217 \| good	31.238 \| good	0.147 \| good	6.474 \| good	0.179 \| good
2025-12-05T10:00:00.000Z	29 \| good	2.689 \| good	10.756 \| good	31.059 \| good	0.134 \| good	7.342 \| good	0.179 \| good
2025-12-05T11:00:00.000Z	25 \| good	2.926 \| good	12.304 \| good	27.479 \| good	0.143 \| good	10.266 \| good	0.222 \| good
2025-12-05T12:00:00.000Z	26 \| good	3.411 \| good	14.725 \| good	27.666 \| good	0.141 \| good	8.285 \| good	0.301 \| good
2025-12-05T13:00:00.000Z	25 \| good	3.428 \| good	15.003 \| good	26.742 \| good	0.149 \| good	15.915 \| good	0.317 \| good
2025-12-05T14:00:00.000Z	25 \| good	3.182 \| good	13.415 \| good	27.007 \| good	0.15 \| good	13.1 \| good	0.362 \| good
2025-12-05T15:00:00.000Z	26 \| good	3.097 \| good	12.762 \| good	27.849 \| good	0.159 \| good	13.243 \| good	0.357 \| good
2025-12-05T16:00:00.000Z	25 \| good	3.186 \| good	14.075 \| good	27.103 \| good	0.156 \| good	13.737 \| good	0.336 \| good
2025-12-05T17:00:00.000Z	22 \| good	4.146 \| good	18.315 \| good	24.265 \| good	0.264 \| good	12.698 \| good	0.336 \| good
2025-12-05T18:00:00.000Z	27 \| good	4.837 \| good	20.514 \| good	23.021 \| good	0.5 \| good	12.926 \| good	0.358 \| good
2025-12-05T19:00:00.000Z	27 \| good	5.304 \| good	22.718 \| good	23.405 \| good	0.486 \| good	13.411 \| good	0.297 \| good
2025-12-05T20:00:00.000Z	27 \| good	5.387 \| good	22.352 \| good	20.834 \| good	0.371 \| good	14.975 \| good	0.358 \| good
2025-12-05T21:00:00.000Z	27 \| good	5.226 \| good	22.181 \| good	16.233 \| good	0.347 \| good	16.609 \| good	0.379 \| good
2025-12-05T22:00:00.000Z	27 \| good	5.171 \| good	22.411 \| good	15.561 \| good	0.272 \| good	21.43 \| good	0.416 \| good
2025-12-05T23:00:00.000Z	27 \| good	5.32 \| good	23.252 \| good	16.121 \| good	0.275 \| good	22.529 \| good	0.391 \| good
2025-12-06T00:00:00.000Z	33 \| good	5.526 \| good	23.524 \| good	14.323 \| good	0.278 \| good	19.96 \| good	0.36 \| good
2025-12-06T01:00:00.000Z	33 \| good	5.879 \| good	25.974 \| good	13.007 \| good	0.28 \| good	19.683 \| good	0.384 \| good
2025-12-06T02:00:00.000Z	33 \| good	6.104 \| good	26.925 \| good	11.42 \| good	0.278 \| good	18.948 \| good	0.41 \| good
2025-12-06T03:00:00.000Z	33 \| good	6.083 \| good	25.4 \| good	10.913 \| good	0.272 \| good	16.898 \| good	0.427 \| good
2025-12-06T04:00:00.000Z	33 \| good	6.473 \| good	28.473 \| good	11.453 \| good	0.25 \| good	18.039 \| good	0.427 \| good
2025-12-06T05:00:00.000Z	38 \| good	7.365 \| good	32.205 \| good	10.828 \| good	0.189 \| good	20.459 \| good	0.427 \| good
2025-12-06T06:00:00.000Z	49 \| good	9.038 \| good	39.915 \| good	10.99 \| good	0.191 \| good	20.286 \| good	0.411 \| good
2025-12-06T07:00:00.000Z	54 \| moderate	10.591 \| good	44.762 \| good	8.756 \| good	0.189 \| good	19.976 \| good	0.41 \| good
2025-12-06T08:00:00.000Z	60 \| moderate	13.686 \| fine	61.808 \| fine	6.491 \| good	0.183 \| good	19.072 \| good	0.427 \| good
2025-12-06T09:00:00.000Z	64 \| moderate	16.335 \| fine	72.569 \| fine	8.228 \| good	0.193 \| good	18.731 \| good	0.422 \| good
2025-12-06T10:00:00.000Z	67 \| moderate	17.788 \| fine	74.538 \| fine	8.2 \| good	0.185 \| good	17.45 \| good	0.427 \| good
2025-12-06T11:00:00.000Z	69 \| moderate	18.513 \| fine	77.816 \| fine	7.575 \| good	0.187 \| good	15.346 \| good	0.406 \| good
2025-12-06T12:00:00.000Z	71 \| moderate	19.706 \| fine	84.236 \| fine	8.762 \| good	0.192 \| good	21.187 \| good	0.411 \| good
2025-12-06T13:00:00.000Z	73 \| moderate	21.147 \| fine	90.092 \| fine	8.573 \| good	0.212 \| good	19.47 \| good	0.428 \| good
2025-12-06T14:00:00.000Z	81 \| moderate	24.518 \| fine	102.579 \| fine	7.575 \| good	0.286 \| good	18.524 \| good	0.476 \| good
2025-12-06T15:00:00.000Z	82 \| moderate	26.356 \| fine	112.377 \| fine	5.907 \| good	0.324 \| good	18.237 \| good	0.532 \| good
2025-12-06T16:00:00.000Z	82 \| moderate	26.474 \| fine	115.139 \| fine	7.98 \| good	0.32 \| good	15.336 \| good	0.544 \| good
2025-12-06T17:00:00.000Z	82 \| moderate	25.939 \| fine	110.978 \| fine	10.398 \| good	0.234 \| good	11.146 \| good	0.492 \| good
2025-12-06T18:00:00.000Z	79 \| moderate	24.088 \| fine	101.527 \| fine	14.448 \| good	0.212 \| good	9.684 \| good	0.517 \| good
2025-12-06T19:00:00.000Z	77 \| moderate	23.431 \| fine	100.957 \| fine	16.777 \| good	0.173 \| good	8.066 \| good	0.443 \| good
2025-12-06T20:00:00.000Z	75 \| moderate	22.173 \| fine	91.286 \| fine	14.622 \| good	0.293 \| good	7.208 \| good	0.396 \| good
2025-12-06T21:00:00.000Z	66 \| moderate	16.992 \| fine	74.681 \| fine	19.49 \| good	0.205 \| good	6.834 \| good	0.365 \| good
2025-12-06T22:00:00.000Z	66 \| moderate	16.928 \| fine	73.547 \| fine	20.39 \| good	0.185 \| good	11.12 \| good	0.369 \| good
2025-12-06T23:00:00.000Z	67 \| moderate	17.871 \| fine	77.193 \| fine	19.478 \| good	0.269 \| good	15.04 \| good	0.343 \| good
2025-12-07T00:00:00.000Z	71 \| moderate	19.98 \| fine	89.398 \| fine	18.25 \| good	0.357 \| good	19.282 \| good	0.366 \| good
2025-12-07T01:00:00.000Z	75 \| moderate	22.219 \| fine	96.28 \| fine	13.821 \| good	0.48 \| good	16.757 \| good	0.397 \| good
2025-12-07T02:00:00.000Z	81 \| moderate	24.883 \| fine	109.705 \| fine	12.112 \| good	0.507 \| good	15.389 \| good	0.461 \| good
2025-12-07T03:00:00.000Z	84 \| moderate	26.511 \| fine	114.942 \| fine	6.368 \| good	0.493 \| good	15.963 \| good	0.65 \| good
2025-12-07T04:00:00.000Z	90 \| moderate	29.802 \| fine	121.039 \| fine	6.51 \| good	0.584 \| good	14.661 \| good	0.675 \| good
2025-12-07T05:00:00.000Z	94 \| moderate	32.193 \| fine	135.518 \| fine	5.02 \| good	0.67 \| good	13.827 \| good	0.708 \| good
2025-12-07T06:00:00.000Z	94 \| moderate	32.202 \| fine	134.765 \| fine	6.265 \| good	0.781 \| good	17.166 \| good	0.68 \| good
2025-12-07T07:00:00.000Z	88 \| moderate	29.036 \| fine	121.842 \| fine	7.439 \| good	0.786 \| good	16.837 \| good	0.695 \| good
2025-12-07T08:00:00.000Z	96 \| moderate	32.9 \| fine	142.193 \| fine	3.542 \| good	0.99 \| good	17.086 \| good	0.695 \| good
2025-12-07T09:00:00.000Z	71 \| moderate	19.727 \| fine	86.786 \| fine	7.079 \| good	4.636 \| good	9.136 \| good	0.232 \| good
2025-12-07T10:00:00.000Z	71 \| moderate	20.205 \| fine	88.665 \| fine	7.034 \| good	4.582 \| good	11.278 \| good	0.251 \| good
2025-12-07T11:00:00.000Z	73 \| moderate	21.196 \| fine	93.064 \| fine	5.04 \| good	4.528 \| good	13.421 \| good	0.27 \| good
2025-12-07T12:00:00.000Z	73 \| moderate	20.569 \| fine	90.652 \| fine	5.366 \| good	4.475 \| good	15.563 \| good	0.29 \| good
2025-12-07T13:00:00.000Z	71 \| moderate	19.795 \| fine	87.138 \| fine	9.768 \| good	4.418 \| good	13.61 \| good	0.29 \| good
2025-12-07T14:00:00.000Z	66 \| moderate	16.866 \| fine	74.519 \| fine	17.269 \| good	4.362 \| good	11.657 \| good	0.289 \| good
2025-12-07T15:00:00.000Z	62 \| moderate	14.727 \| fine	66.036 \| fine	21.777 \| good	4.305 \| good	9.703 \| good	0.289 \| good
2025-12-07T16:00:00.000Z	58 \| moderate	13.156 \| fine	59.104 \| fine	25.936 \| good	3.912 \| good	8.452 \| good	0.259 \| good
2025-12-07T17:00:00.000Z	56 \| moderate	12.295 \| fine	55.137 \| fine	28.798 \| good	3.518 \| good	7.2 \| good	0.228 \| good
2025-12-07T18:00:00.000Z	58 \| moderate	12.647 \| fine	57 \| fine	29.377 \| good	3.125 \| good	5.948 \| good	0.198 \| good
2025-12-07T19:00:00.000Z	58 \| moderate	13.348 \| fine	60.107 \| fine	27.513 \| good	3.323 \| good	6.47 \| good	0.198 \| good
2025-12-07T20:00:00.000Z	62 \| moderate	14.822 \| fine	66.173 \| fine	22.874 \| good	3.521 \| good	6.991 \| good	0.198 \| good
2025-12-07T21:00:00.000Z	66 \| moderate	16.906 \| fine	75.126 \| fine	17.533 \| good	3.719 \| good	7.513 \| good	0.198 \| good
2025-12-07T22:00:00.000Z	71 \| moderate	19.697 \| fine	87.005 \| fine	15.052 \| good	3.869 \| good	11.89 \| good	0.236 \| good
2025-12-07T23:00:00.000Z	75 \| moderate	21.916 \| fine	95.859 \| fine	10.046 \| good	4.019 \| good	16.268 \| good	0.273 \| good
2025-12-08T00:00:00.000Z	77 \| moderate	23.297 \| fine	101.85 \| fine	8.628 \| good	4.17 \| good	20.646 \| good	0.311 \| good
2025-12-08T01:00:00.000Z	79 \| moderate	23.788 \| fine	104.11 \| fine	8.63 \| good	4.361 \| good	20.798 \| good	0.315 \| good
2025-12-08T02:00:00.000Z	81 \| moderate	25.425 \| fine	110.692 \| fine	6.489 \| good	4.552 \| good	20.95 \| good	0.319 \| good
2025-12-08T03:00:00.000Z	81 \| moderate	24.94 \| fine	108.738 \| fine	6.476 \| good	4.744 \| good	21.102 \| good	0.323 \| good
2025-12-08T04:00:00.000Z	73 \| moderate	20.618 \| fine	90.942 \| fine	7.229 \| good	4.686 \| good	19.679 \| good	0.311 \| good
2025-12-08T05:00:00.000Z	67 \| moderate	18.249 \| fine	80.698 \| fine	10.915 \| good	4.629 \| good	18.257 \| good	0.299 \| good
2025-12-08T06:00:00.000Z	62 \| moderate	14.559 \| fine	64.94 \| fine	17.374 \| good	4.572 \| good	16.835 \| good	0.286 \| good
2025-12-08T07:00:00.000Z	52 \| moderate	10.197 \| good	45.47 \| good	23.928 \| good	4.081 \| good	13.186 \| good	0.258 \| good
2025-12-08T08:00:00.000Z	26 \| good	3.912 \| good	16.86 \| good	27.881 \| good	3.591 \| good	9.538 \| good	0.229 \| good
2025-12-08T09:00:00.000Z	29 \| good	2.037 \| good	8.394 \| good	30.6 \| good	3.101 \| good	5.89 \| good	0.2 \| good
2025-12-08T10:00:00.000Z	26 \| good	1.973 \| good	8.095 \| good	28.392 \| good	2.393 \| good	5.171 \| good	0.188 \| good
2025-12-08T11:00:00.000Z	23 \| good	3.175 \| good	13.429 \| good	25.112 \| good	1.684 \| good	4.452 \| good	0.176 \| good
2025-12-08T12:00:00.000Z	21 \| good	2.892 \| good	12.021 \| good	23.487 \| good	0.976 \| good	3.733 \| good	0.164 \| good
2025-12-08T13:00:00.000Z	25 \| good	2.413 \| good	10.069 \| good	27.497 \| good	0.902 \| good	3.39 \| good	0.16 \| good
2025-12-08T14:00:00.000Z	28 \| good	1.521 \| good	6.126 \| good	30.354 \| good	0.827 \| good	3.047 \| good	0.156 \| good
2025-12-08T15:00:00.000Z	29 \| good	0.794 \| good	3.034 \| good	31.284 \| good	0.752 \| good	2.704 \| good	0.152 \| good
2025-12-08T16:00:00.000Z	27 \| good	0.869 \| good	3.209 \| good	29.469 \| good	0.742 \| good	2.52 \| good	0.148 \| good
2025-12-08T17:00:00.000Z	26 \| good	1.079 \| good	4.32 \| good	27.605 \| good	0.732 \| good	2.336 \| good	0.144 \| good
2025-12-08T18:00:00.000Z	25 \| good	1.308 \| good	5.173 \| good	27.17 \| good	0.722 \| good	2.151 \| good	0.14 \| good
2025-12-08T19:00:00.000Z	25 \| good	1.191 \| good	4.885 \| good	26.831 \| good	0.766 \| good	2.785 \| good	0.142 \| good
2025-12-08T20:00:00.000Z	23 \| good	1.91 \| good	8.09 \| good	24.903 \| good	0.81 \| good	3.418 \| good	0.145 \| good
2025-12-08T21:00:00.000Z	20 \| good	2.69 \| good	10.964 \| good	21.521 \| good	0.854 \| good	4.051 \| good	0.147 \| good
2025-12-08T22:00:00.000Z	18 \| good	2.515 \| good	10.149 \| good	19.216 \| good	1.003 \| good	6.773 \| good	0.169 \| good
2025-12-08T23:00:00.000Z	17 \| good	3.003 \| good	12.233 \| good	17.762 \| good	1.151 \| good	9.495 \| good	0.191 \| good
2025-12-09T00:00:00.000Z	19 \| good	2.586 \| good	10.391 \| good	19.739 \| good	1.3 \| good	12.217 \| good	0.212 \| good
2025-12-09T01:00:00.000Z	18 \| good	1.216 \| good	4.934 \| good	18.88 \| good	1.303 \| good	11.482 \| good	0.208 \| good
2025-12-09T02:00:00.000Z	18 \| good	0.845 \| good	3.234 \| good	19.224 \| good	1.307 \| good	10.747 \| good	0.204 \| good
2025-12-09T03:00:00.000Z	18 \| good	0.925 \| good	3.554 \| good	18.555 \| good	1.31 \| good	10.012 \| good	0.2 \| good
2025-12-09T04:00:00.000Z	18 \| good	1.476 \| good	5.948 \| good	18.694 \| good	1.256 \| good	9.169 \| good	0.195 \| good
2025-12-09T05:00:00.000Z	15 \| good	1.943 \| good	7.966 \| good	16.491 \| good	1.202 \| good	8.325 \| good	0.189 \| good
2025-12-09T06:00:00.000Z	38 \| good	7.359 \| good	8.319 \| good	26.31 \| good	1.131 \| good	7.477 \| good	0.184 \| good
2025-12-09T07:00:00.000Z	16 \| good	3.07 \| good	13.278 \| good	12.952 \| good	1.258 \| good	7.585 \| good	0.184 \| good
2025-12-09T08:00:00.000Z	27 \| good	5.036 \| good	22.012 \| good	7.801 \| good	1.369 \| good	7.689 \| good	0.185 \| good

Chester city

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Chester City, Pennsylvania air quality map: Track AQI near you

0.68ppm

How accurate is Pennsylvania, USA air quality data?

Air quality data and pollutant measurements for Pennsylvania, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Chester City, Pennsylvania updated?

The air quality for Chester City, Pennsylvania is updated every hour.

When was the worst air quality at Chester City, Pennsylvania in the last 24 hrs?

The worst air quality in Chester City, Pennsylvania in the last 24 hours was observed at 06:00:00 on 2025-12-07.

When was the best air quality at Chester City, Pennsylvania in the last 24 hrs?

In the last 24 hrs, the best air quality in Chester City, Pennsylvania was observed at 08:00:00 on 2025-12-06.

What is the current air quality in Chester City, Pennsylvania?

The current air quality in Chester City, Pennsylvania is 96, categorized as Moderate based on real-time data.

What pollutant is the most common in Chester City, Pennsylvania?

The most common pollutant in Chester City, Pennsylvania is PM2.5.

What should I do if the air quality in Chester City, Pennsylvania is poor?

If the air quality in Chester City, Pennsylvania is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Chester City, Pennsylvania?

The current PM_2.5 concentration at Chester City, Pennsylvania is 32.9 μg/m³.

What is the current concentration of PM₁₀ in Chester City, Pennsylvania?

The current PM₁₀ concentration at Chester City, Pennsylvania is 142.193 μg/m³.

What is the current concentration of carbon monoxide (CO) in Chester City, Pennsylvania?

The current carbon monoxide (CO) concentration at Chester City, Pennsylvania is 0.695 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Chester City, Pennsylvania?

The current sulfur dioxide (SO₂) concentration at Chester City, Pennsylvania is 0.99 ppb.

What is the current concentration of ozone (O₃) in Chester City, Pennsylvania?

The current ozone (O₃) concentration at Chester City, Pennsylvania is 3.542 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Chester City, Pennsylvania?

The current nitrogen dioxide (NO₂) concentration at Chester City, Pennsylvania is 17.086 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-05T09:00:00.000Z	29 \| good	2.571 \| good	10.217 \| good	31.238 \| good	0.147 \| good	6.474 \| good	0.179 \| good
2025-12-05T10:00:00.000Z	29 \| good	2.689 \| good	10.756 \| good	31.059 \| good	0.134 \| good	7.342 \| good	0.179 \| good
2025-12-05T11:00:00.000Z	25 \| good	2.926 \| good	12.304 \| good	27.479 \| good	0.143 \| good	10.266 \| good	0.222 \| good
2025-12-05T12:00:00.000Z	26 \| good	3.411 \| good	14.725 \| good	27.666 \| good	0.141 \| good	8.285 \| good	0.301 \| good
2025-12-05T13:00:00.000Z	25 \| good	3.428 \| good	15.003 \| good	26.742 \| good	0.149 \| good	15.915 \| good	0.317 \| good
2025-12-05T14:00:00.000Z	25 \| good	3.182 \| good	13.415 \| good	27.007 \| good	0.15 \| good	13.1 \| good	0.362 \| good
2025-12-05T15:00:00.000Z	26 \| good	3.097 \| good	12.762 \| good	27.849 \| good	0.159 \| good	13.243 \| good	0.357 \| good
2025-12-05T16:00:00.000Z	25 \| good	3.186 \| good	14.075 \| good	27.103 \| good	0.156 \| good	13.737 \| good	0.336 \| good
2025-12-05T17:00:00.000Z	22 \| good	4.146 \| good	18.315 \| good	24.265 \| good	0.264 \| good	12.698 \| good	0.336 \| good
2025-12-05T18:00:00.000Z	27 \| good	4.837 \| good	20.514 \| good	23.021 \| good	0.5 \| good	12.926 \| good	0.358 \| good
2025-12-05T19:00:00.000Z	27 \| good	5.304 \| good	22.718 \| good	23.405 \| good	0.486 \| good	13.411 \| good	0.297 \| good
2025-12-05T20:00:00.000Z	27 \| good	5.387 \| good	22.352 \| good	20.834 \| good	0.371 \| good	14.975 \| good	0.358 \| good
2025-12-05T21:00:00.000Z	27 \| good	5.226 \| good	22.181 \| good	16.233 \| good	0.347 \| good	16.609 \| good	0.379 \| good
2025-12-05T22:00:00.000Z	27 \| good	5.171 \| good	22.411 \| good	15.561 \| good	0.272 \| good	21.43 \| good	0.416 \| good
2025-12-05T23:00:00.000Z	27 \| good	5.32 \| good	23.252 \| good	16.121 \| good	0.275 \| good	22.529 \| good	0.391 \| good
2025-12-06T00:00:00.000Z	33 \| good	5.526 \| good	23.524 \| good	14.323 \| good	0.278 \| good	19.96 \| good	0.36 \| good
2025-12-06T01:00:00.000Z	33 \| good	5.879 \| good	25.974 \| good	13.007 \| good	0.28 \| good	19.683 \| good	0.384 \| good
2025-12-06T02:00:00.000Z	33 \| good	6.104 \| good	26.925 \| good	11.42 \| good	0.278 \| good	18.948 \| good	0.41 \| good
2025-12-06T03:00:00.000Z	33 \| good	6.083 \| good	25.4 \| good	10.913 \| good	0.272 \| good	16.898 \| good	0.427 \| good
2025-12-06T04:00:00.000Z	33 \| good	6.473 \| good	28.473 \| good	11.453 \| good	0.25 \| good	18.039 \| good	0.427 \| good
2025-12-06T05:00:00.000Z	38 \| good	7.365 \| good	32.205 \| good	10.828 \| good	0.189 \| good	20.459 \| good	0.427 \| good
2025-12-06T06:00:00.000Z	49 \| good	9.038 \| good	39.915 \| good	10.99 \| good	0.191 \| good	20.286 \| good	0.411 \| good
2025-12-06T07:00:00.000Z	54 \| moderate	10.591 \| good	44.762 \| good	8.756 \| good	0.189 \| good	19.976 \| good	0.41 \| good
2025-12-06T08:00:00.000Z	60 \| moderate	13.686 \| fine	61.808 \| fine	6.491 \| good	0.183 \| good	19.072 \| good	0.427 \| good
2025-12-06T09:00:00.000Z	64 \| moderate	16.335 \| fine	72.569 \| fine	8.228 \| good	0.193 \| good	18.731 \| good	0.422 \| good
2025-12-06T10:00:00.000Z	67 \| moderate	17.788 \| fine	74.538 \| fine	8.2 \| good	0.185 \| good	17.45 \| good	0.427 \| good
2025-12-06T11:00:00.000Z	69 \| moderate	18.513 \| fine	77.816 \| fine	7.575 \| good	0.187 \| good	15.346 \| good	0.406 \| good
2025-12-06T12:00:00.000Z	71 \| moderate	19.706 \| fine	84.236 \| fine	8.762 \| good	0.192 \| good	21.187 \| good	0.411 \| good
2025-12-06T13:00:00.000Z	73 \| moderate	21.147 \| fine	90.092 \| fine	8.573 \| good	0.212 \| good	19.47 \| good	0.428 \| good
2025-12-06T14:00:00.000Z	81 \| moderate	24.518 \| fine	102.579 \| fine	7.575 \| good	0.286 \| good	18.524 \| good	0.476 \| good
2025-12-06T15:00:00.000Z	82 \| moderate	26.356 \| fine	112.377 \| fine	5.907 \| good	0.324 \| good	18.237 \| good	0.532 \| good
2025-12-06T16:00:00.000Z	82 \| moderate	26.474 \| fine	115.139 \| fine	7.98 \| good	0.32 \| good	15.336 \| good	0.544 \| good
2025-12-06T17:00:00.000Z	82 \| moderate	25.939 \| fine	110.978 \| fine	10.398 \| good	0.234 \| good	11.146 \| good	0.492 \| good
2025-12-06T18:00:00.000Z	79 \| moderate	24.088 \| fine	101.527 \| fine	14.448 \| good	0.212 \| good	9.684 \| good	0.517 \| good
2025-12-06T19:00:00.000Z	77 \| moderate	23.431 \| fine	100.957 \| fine	16.777 \| good	0.173 \| good	8.066 \| good	0.443 \| good
2025-12-06T20:00:00.000Z	75 \| moderate	22.173 \| fine	91.286 \| fine	14.622 \| good	0.293 \| good	7.208 \| good	0.396 \| good
2025-12-06T21:00:00.000Z	66 \| moderate	16.992 \| fine	74.681 \| fine	19.49 \| good	0.205 \| good	6.834 \| good	0.365 \| good
2025-12-06T22:00:00.000Z	66 \| moderate	16.928 \| fine	73.547 \| fine	20.39 \| good	0.185 \| good	11.12 \| good	0.369 \| good
2025-12-06T23:00:00.000Z	67 \| moderate	17.871 \| fine	77.193 \| fine	19.478 \| good	0.269 \| good	15.04 \| good	0.343 \| good
2025-12-07T00:00:00.000Z	71 \| moderate	19.98 \| fine	89.398 \| fine	18.25 \| good	0.357 \| good	19.282 \| good	0.366 \| good
2025-12-07T01:00:00.000Z	75 \| moderate	22.219 \| fine	96.28 \| fine	13.821 \| good	0.48 \| good	16.757 \| good	0.397 \| good
2025-12-07T02:00:00.000Z	81 \| moderate	24.883 \| fine	109.705 \| fine	12.112 \| good	0.507 \| good	15.389 \| good	0.461 \| good
2025-12-07T03:00:00.000Z	84 \| moderate	26.511 \| fine	114.942 \| fine	6.368 \| good	0.493 \| good	15.963 \| good	0.65 \| good
2025-12-07T04:00:00.000Z	90 \| moderate	29.802 \| fine	121.039 \| fine	6.51 \| good	0.584 \| good	14.661 \| good	0.675 \| good
2025-12-07T05:00:00.000Z	94 \| moderate	32.193 \| fine	135.518 \| fine	5.02 \| good	0.67 \| good	13.827 \| good	0.708 \| good
2025-12-07T06:00:00.000Z	94 \| moderate	32.202 \| fine	134.765 \| fine	6.265 \| good	0.781 \| good	17.166 \| good	0.68 \| good
2025-12-07T07:00:00.000Z	88 \| moderate	29.036 \| fine	121.842 \| fine	7.439 \| good	0.786 \| good	16.837 \| good	0.695 \| good
2025-12-07T08:00:00.000Z	96 \| moderate	32.9 \| fine	142.193 \| fine	3.542 \| good	0.99 \| good	17.086 \| good	0.695 \| good
2025-12-07T09:00:00.000Z	71 \| moderate	19.727 \| fine	86.786 \| fine	7.079 \| good	4.636 \| good	9.136 \| good	0.232 \| good
2025-12-07T10:00:00.000Z	71 \| moderate	20.205 \| fine	88.665 \| fine	7.034 \| good	4.582 \| good	11.278 \| good	0.251 \| good
2025-12-07T11:00:00.000Z	73 \| moderate	21.196 \| fine	93.064 \| fine	5.04 \| good	4.528 \| good	13.421 \| good	0.27 \| good
2025-12-07T12:00:00.000Z	73 \| moderate	20.569 \| fine	90.652 \| fine	5.366 \| good	4.475 \| good	15.563 \| good	0.29 \| good
2025-12-07T13:00:00.000Z	71 \| moderate	19.795 \| fine	87.138 \| fine	9.768 \| good	4.418 \| good	13.61 \| good	0.29 \| good
2025-12-07T14:00:00.000Z	66 \| moderate	16.866 \| fine	74.519 \| fine	17.269 \| good	4.362 \| good	11.657 \| good	0.289 \| good
2025-12-07T15:00:00.000Z	62 \| moderate	14.727 \| fine	66.036 \| fine	21.777 \| good	4.305 \| good	9.703 \| good	0.289 \| good
2025-12-07T16:00:00.000Z	58 \| moderate	13.156 \| fine	59.104 \| fine	25.936 \| good	3.912 \| good	8.452 \| good	0.259 \| good
2025-12-07T17:00:00.000Z	56 \| moderate	12.295 \| fine	55.137 \| fine	28.798 \| good	3.518 \| good	7.2 \| good	0.228 \| good
2025-12-07T18:00:00.000Z	58 \| moderate	12.647 \| fine	57 \| fine	29.377 \| good	3.125 \| good	5.948 \| good	0.198 \| good
2025-12-07T19:00:00.000Z	58 \| moderate	13.348 \| fine	60.107 \| fine	27.513 \| good	3.323 \| good	6.47 \| good	0.198 \| good
2025-12-07T20:00:00.000Z	62 \| moderate	14.822 \| fine	66.173 \| fine	22.874 \| good	3.521 \| good	6.991 \| good	0.198 \| good
2025-12-07T21:00:00.000Z	66 \| moderate	16.906 \| fine	75.126 \| fine	17.533 \| good	3.719 \| good	7.513 \| good	0.198 \| good
2025-12-07T22:00:00.000Z	71 \| moderate	19.697 \| fine	87.005 \| fine	15.052 \| good	3.869 \| good	11.89 \| good	0.236 \| good
2025-12-07T23:00:00.000Z	75 \| moderate	21.916 \| fine	95.859 \| fine	10.046 \| good	4.019 \| good	16.268 \| good	0.273 \| good
2025-12-08T00:00:00.000Z	77 \| moderate	23.297 \| fine	101.85 \| fine	8.628 \| good	4.17 \| good	20.646 \| good	0.311 \| good
2025-12-08T01:00:00.000Z	79 \| moderate	23.788 \| fine	104.11 \| fine	8.63 \| good	4.361 \| good	20.798 \| good	0.315 \| good
2025-12-08T02:00:00.000Z	81 \| moderate	25.425 \| fine	110.692 \| fine	6.489 \| good	4.552 \| good	20.95 \| good	0.319 \| good
2025-12-08T03:00:00.000Z	81 \| moderate	24.94 \| fine	108.738 \| fine	6.476 \| good	4.744 \| good	21.102 \| good	0.323 \| good
2025-12-08T04:00:00.000Z	73 \| moderate	20.618 \| fine	90.942 \| fine	7.229 \| good	4.686 \| good	19.679 \| good	0.311 \| good
2025-12-08T05:00:00.000Z	67 \| moderate	18.249 \| fine	80.698 \| fine	10.915 \| good	4.629 \| good	18.257 \| good	0.299 \| good
2025-12-08T06:00:00.000Z	62 \| moderate	14.559 \| fine	64.94 \| fine	17.374 \| good	4.572 \| good	16.835 \| good	0.286 \| good
2025-12-08T07:00:00.000Z	52 \| moderate	10.197 \| good	45.47 \| good	23.928 \| good	4.081 \| good	13.186 \| good	0.258 \| good
2025-12-08T08:00:00.000Z	26 \| good	3.912 \| good	16.86 \| good	27.881 \| good	3.591 \| good	9.538 \| good	0.229 \| good
2025-12-08T09:00:00.000Z	29 \| good	2.037 \| good	8.394 \| good	30.6 \| good	3.101 \| good	5.89 \| good	0.2 \| good
2025-12-08T10:00:00.000Z	26 \| good	1.973 \| good	8.095 \| good	28.392 \| good	2.393 \| good	5.171 \| good	0.188 \| good
2025-12-08T11:00:00.000Z	23 \| good	3.175 \| good	13.429 \| good	25.112 \| good	1.684 \| good	4.452 \| good	0.176 \| good
2025-12-08T12:00:00.000Z	21 \| good	2.892 \| good	12.021 \| good	23.487 \| good	0.976 \| good	3.733 \| good	0.164 \| good
2025-12-08T13:00:00.000Z	25 \| good	2.413 \| good	10.069 \| good	27.497 \| good	0.902 \| good	3.39 \| good	0.16 \| good
2025-12-08T14:00:00.000Z	28 \| good	1.521 \| good	6.126 \| good	30.354 \| good	0.827 \| good	3.047 \| good	0.156 \| good
2025-12-08T15:00:00.000Z	29 \| good	0.794 \| good	3.034 \| good	31.284 \| good	0.752 \| good	2.704 \| good	0.152 \| good
2025-12-08T16:00:00.000Z	27 \| good	0.869 \| good	3.209 \| good	29.469 \| good	0.742 \| good	2.52 \| good	0.148 \| good
2025-12-08T17:00:00.000Z	26 \| good	1.079 \| good	4.32 \| good	27.605 \| good	0.732 \| good	2.336 \| good	0.144 \| good
2025-12-08T18:00:00.000Z	25 \| good	1.308 \| good	5.173 \| good	27.17 \| good	0.722 \| good	2.151 \| good	0.14 \| good
2025-12-08T19:00:00.000Z	25 \| good	1.191 \| good	4.885 \| good	26.831 \| good	0.766 \| good	2.785 \| good	0.142 \| good
2025-12-08T20:00:00.000Z	23 \| good	1.91 \| good	8.09 \| good	24.903 \| good	0.81 \| good	3.418 \| good	0.145 \| good
2025-12-08T21:00:00.000Z	20 \| good	2.69 \| good	10.964 \| good	21.521 \| good	0.854 \| good	4.051 \| good	0.147 \| good
2025-12-08T22:00:00.000Z	18 \| good	2.515 \| good	10.149 \| good	19.216 \| good	1.003 \| good	6.773 \| good	0.169 \| good
2025-12-08T23:00:00.000Z	17 \| good	3.003 \| good	12.233 \| good	17.762 \| good	1.151 \| good	9.495 \| good	0.191 \| good
2025-12-09T00:00:00.000Z	19 \| good	2.586 \| good	10.391 \| good	19.739 \| good	1.3 \| good	12.217 \| good	0.212 \| good
2025-12-09T01:00:00.000Z	18 \| good	1.216 \| good	4.934 \| good	18.88 \| good	1.303 \| good	11.482 \| good	0.208 \| good
2025-12-09T02:00:00.000Z	18 \| good	0.845 \| good	3.234 \| good	19.224 \| good	1.307 \| good	10.747 \| good	0.204 \| good
2025-12-09T03:00:00.000Z	18 \| good	0.925 \| good	3.554 \| good	18.555 \| good	1.31 \| good	10.012 \| good	0.2 \| good
2025-12-09T04:00:00.000Z	18 \| good	1.476 \| good	5.948 \| good	18.694 \| good	1.256 \| good	9.169 \| good	0.195 \| good
2025-12-09T05:00:00.000Z	15 \| good	1.943 \| good	7.966 \| good	16.491 \| good	1.202 \| good	8.325 \| good	0.189 \| good
2025-12-09T06:00:00.000Z	38 \| good	7.359 \| good	8.319 \| good	26.31 \| good	1.131 \| good	7.477 \| good	0.184 \| good
2025-12-09T07:00:00.000Z	16 \| good	3.07 \| good	13.278 \| good	12.952 \| good	1.258 \| good	7.585 \| good	0.184 \| good
2025-12-09T08:00:00.000Z	27 \| good	5.036 \| good	22.012 \| good	7.801 \| good	1.369 \| good	7.689 \| good	0.185 \| good

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Major air pollutants in Chester City, Pennsylvania

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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